Stuck at Uboot - IMX6Q

huanvh — Wed, 14 Oct 2020 10:27:45 GMT

Hello

i am writing uboot for my mx6q circuit board based on mx6q sabresd. My board uses 2GB RAM and EMMC 5.1. But I'm stuck at U-Boot, please help me, thanks

U-Boot 2015.04 (Oct 14 2020 - 15:13:53) CPU: Freescale i.MX6Q rev1.5 at 792 MHz CPU: Temperature 45 C Reset cause: POR Board: MX6-SabreSD I2C: ready DRAM: 2 GiB PMIC: PFUZE100 ID=0x10 MMC: Warning: you configured more USDHC controllers(4) then supported by the board (4) MMC/SD: Reset never completed. voltage not supported by controller FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2 *** Warning - bad CRC, using default environment unsupported panel hdmi In: serial Out: serial Err: serial switch to partitions #0, OK mmc2(part 0) is current device Net: Phy 0 not found PHY reset timed out FEC [PRIME] Error: FEC address not set. reading logo.bmp ** Unable to read file logo.bmp ** There is no valid bmp file at the given address Normal Boot Hit Enter key to stop autoboot: 0 => => => => U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U-Boot 2015.04 (Oct 14 2020 U▒

When I comment this line off I get a screen like this

huanvh_0-1602671254130.png

CPU: Freescale i.MX6Q rev1.5 at 792 MHz CPU: Temperature 47 C Reset cause: POR Board: MX6-SabreSD I2C: ready DRAM: 2 GiB PMIC: PFUZE100 ID=0x10 MMC: Warning: you configured more USDHC controllers(4) then supported by the board (4) MMC/SD: Reset never completed. voltage not supported by controller FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2 *** Warning - bad CRC, using default environment unsupported panel hdmi In: serial Out: serial Err: serial switch to partitions #0, OK mmc2(part 0) is current device Net: Phy 0 not found PHY reset timed out FEC [PRIME] Error: FEC address not set. reading logo.bmp ** Unable to read file logo.bmp ** There is no valid bmp file at the given address Normal Boot Hit Enter key to stop autoboot: 0 reading zImage 6674280 bytes read in 183 ms (34.8 MiB/s) reading imx6q-sabresd.dtb 48059 bytes read in 18 ms (2.5 MiB/s) Kernel image @ 0x12000000 [ 0x000000 - 0x65d768 ] ## Flattened Device Tree blob at 18000000 Booting using the fdt blob at 0x18000000 Using Device Tree in place at 18000000, end 1800ebba switch to ldo_bypass mode!

Re: Stuck at Uboot - IMX6Q

Rita_Wang — Fri, 16 Oct 2020 06:57:34 GMT

Do you mean if you do not " comment this line off", it can work well? Could you tell us which version of BSP are you using? And what have you modified?

Re: Stuck at Uboot - IMX6Q

huanvh — Fri, 16 Oct 2020 08:57:04 GMT

Thank @Rita_Wang

i have solved the problem, error found due to uart level switching ic

Re: Stuck at Uboot - IMX6Q

Rita_Wang — Fri, 16 Oct 2020 09:05:43 GMT

OK, Good news.

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